Molecular characterization of a PR4 gene in Chinese cabbage

Chung, Sam-Young; Lee, Kyung‐Ah; Oh, Kyung-Jin; Cho, Tae-Ju

doi:10.1080/17386357.2005.9647276

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…The expression level of BrPR1 was analyzed by qPCR using a primer set, which amplifies only Bra013123, and these data indicate that Bra013123 is the main functional BrPR1 in B. rapa. By contrast, a previous report showed that SA treatment repressed BrPR4 expression in B. rapa (Chung et al 2005), while in this study, we found that the expression of BrPR4 was induced by SA.…”

Section: Discussioncontrasting

confidence: 99%

The transcriptional response to salicylic acid plays a role in Fusarium yellows resistance in Brassica rapa L.

et al. 2021

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Section: Discussioncontrasting

confidence: 99%

The transcriptional response to salicylic acid plays a role in Fusarium yellows resistance in Brassica rapa L.

et al. 2021

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“…The regulation of this gene was dependent on ET in Chinese cabbage (Brassica campestris ssp. pekinensis) plants (Chung et al, 2005) and was sensitive to ET and JA in Arabidopsis (Thomma et al, 2001), and in both cases it was not dependent on SA, which could explain its up-regulation by Cd. In this work, we have demonstrated that PrP4A is also regulated by ROS, although exogenous Ca supply does not affect the up-regulation under Cd toxicity.…”

Section: The Cellular Response To CD Is Mediated By Ja and Etmentioning

confidence: 77%

Cellular Response of Pea Plants to Cadmium Toxicity: Cross Talk between Reactive Oxygen Species, Nitric Oxide, and Calcium

et al. 2009

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Cadmium (Cd) toxicity has been widely studied in different plant species; however, the mechanism involved in its toxicity as well as the cell response against the metal have not been well established. In this work, using pea (Pisum sativum) plants, we studied the effect of Cd on antioxidants, reactive oxygen species (ROS), and nitric oxide (NO) metabolism of leaves using different cellular, molecular, and biochemical approaches. The growth of pea plants with 50 mM CdCl 2 affected differentially the expression of superoxide dismutase (SOD) isozymes at both transcriptional and posttranscriptional levels, giving rise to a SOD activity reduction. The copper/zinc-SOD down-regulation was apparently due to the calcium (Ca) deficiency induced by the heavy metal. In these circumstances, the overproduction of the ROS hydrogen peroxide and superoxide could be observed in vivo by confocal laser microscopy, mainly associated with vascular tissue, epidermis, and mesophyll cells, and the production of superoxide radicals was prevented by exogenous Ca. On the other hand, the NO synthase-dependent NO production was strongly depressed by Cd, and treatment with Ca prevented this effect. Under these conditions, the pathogen-related proteins PrP4A and chitinase and the heat shock protein 71.2, were up-regulated, probably to protect cells against damages induced by Cd. The regulation of these proteins could be mediated by jasmonic acid and ethylene, whose contents increased by Cd treatment. A model is proposed for the cellular response to long-term Cd exposure consisting of cross talk between Ca, ROS, and NO.

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“…This gene is regulated by ET (Thomma et al . 2001; Chung et al . 2005), and ROS (Rodríguez‐Serrano et al .…”

Section: Discussionmentioning

confidence: 99%

Differential response of young and adult leaves to herbicide 2,4‐dichlorophenoxyacetic acid in pea plants: role of reactive oxygen species

Pazmiño

Rodríguez‐Serrano

Romero‐Puertas

et al. 2011

Plant Cell & Environment

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In this work the differential response of adult and young leaves from pea (Pisum sativum L.) plants to the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) (23 mm) applied by foliar spraying was investigated. The concentration of 2,4-D (23 mm) and the time of treatment (72 h) were previously optimized in order to visualize its toxic effects on pea plants. Under these conditions, the herbicide induced severe disturbances in mesophyll cells structure and proliferation of vascular tissue in young leaves and increased acyl-CoA oxidase (ACX), xanthine oxidase (XOD) and lipoxygenase (LOX) activities in young leaves, and only ACX and LOX in adult leaves. This situation produced reactive oxygen species (ROS) over-accumulation favoured by the absence of significant changes in the enzymatic antioxidants, giving rise to oxidative damages to proteins and membrane lipids. An increase of ethylene took place in both young and adult leaves and the induction of genes encoding the stress proteins, PRP4A and HSP 71,2, was observed mainly in young leaves. These results suggest that ROS overproduction is a key factor in the effect of high concentrations of 2,4-D, and ROS can trigger a differential response in young and adult leaves, either epinasty development in young leaves or senescence processes in adult tissues.

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Molecular characterization of a PR4 gene in Chinese cabbage

Cited by 5 publications

References 22 publications

The transcriptional response to salicylic acid plays a role in Fusarium yellows resistance in Brassica rapa L.

The transcriptional response to salicylic acid plays a role in Fusarium yellows resistance in Brassica rapa L.

Cellular Response of Pea Plants to Cadmium Toxicity: Cross Talk between Reactive Oxygen Species, Nitric Oxide, and Calcium

Differential response of young and adult leaves to herbicide 2,4‐dichlorophenoxyacetic acid in pea plants: role of reactive oxygen species

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